Progress on the Anthrax Toxin and Its Receptor

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ISSN 100727626 CN 1123870ΠQ 2002 12 Chinese Journal of Biochemistry and Molecular Biology 18 (6) :664 668, 3 (, 510631) 3 : (protective antigen, PA) (lethal factor, LF) (edema factor, EF) LF PA (anthrax toxin receptor, ATR) cdna,, Q71,Q785 Progress on the Anthrax Toxin and Its Receptor LI Yan2ling,LIU Cheng2yi 3 ( The Information Biology Group of Laboratory of Light Transmission Optics, South China Normal University, Guangzhou 510631, China) Abstract The recent progress of the study on the anthrax toxin have been reviewed The anthrax toxin con2 sists of three proteins : protective antigen (PA), lethal factor (LF) and edema factor ( EF) PA binds to cell2 surface receptors on the host cell membranes After being cleaved by a protease, PA binds to the two toxic enzymes, LF and EF, and mediates their transportation into the cytosol where they exert their pathogenic ef2 fects The structure of lethal factor the crucial pathogenic enzyme of anthrax toxin was described And the cloning of the human PA receptor using a genetic complementation approach was discussed As both PA and LF are possible targets for therapeutic agents, this review provides valuable information to researchers working towards better treatments for anthrax and tumor Key words anthrax toxin, lethal factor, protective antigen, anthrax toxin receptor, EF) (protective antigen, PA) LF 1 Zn 2 + MAPKK [1 6 ] ; EF 1 [7,8 ] ;PA, ] (LF) ; PA LF EF (PA), (ATR), ATR ATR cdna :2002204203 ; :2002207208 (No 60178003) (No 20003061) 3 :Tel :02028521192024,Fax : 020285211603 1 E2mail : liutcy @scnu edu cn [1 4 3 ] : (lethal factor, LF) (edema factor,,,1977 10 Received :April 3,2002 ;Accepted :July 8,2002 Supported by National Natural Science Foundation of China (No 60178003) and Natural Science Foundation of Guangdong Province (No 20003061) 3 Corresponding author Tel :02028521192024,Fax :020285211603 E2mail :liutcy @scnu edu cn

6 : 665,PA LF EF 3,PA LF EF [9 ],EF 3, EF camp, [7 ] PA LF ] [10 ] 111 LF ] LF 90 000 LF MAPKK 1 LF PA, LF ],LF 4 :, Zn 2 + PA ( ) ;, ( 552 776) MAPKK22, 9 4 2 MAPKK22 N 16 ( Fig 1) 3, 3, 12, 4 2 3 30 PA ] ( 263 297 385 550) Bacillus cereus VIP2 ( 1QS2), VIP2 NAD NAD Fig 1 Stereo ribbon representation of LF [11 13 ] Fig 2 Stereo representation of the active site centre of LF [14 ] II ] LF Zn 2 + 3 ( ( Fig 2) LF 303 382) 2 4 nm, (S1) 3, 282 382, 101 5 2 5 1 LF Zn 2 +,, MAPKK22 N LF ]

666 18 S1, MAPKK21 MAPKK22 N S1 MAPKK N MAPKK MAPKK C MAPKK LF ] LF MAPKK N MAPK, MAPKK21 MAPKK22, [15 ], ] ; [16 ] 112 PA,17,18 ] PA 4, 83 000 N 2 ATR PA ; PA, PA ; ;, [19,20 C, PA ] PA [18 20,PA ] :N PA 20 ( anthrax toxin receptor, ATR) C PA 63 PA 20,PA 63, PA LF EF PA 63 [ PA 63 ] 7 ( Fig 3) EF LF PA 20 PA 63 PA 63 LF EF [18 ] [ PA 63 ] 7 3 LF EF [9 ] EF 90 % LF [ PA 63 ] 7 ICR2191 ( DNA ph [ PA 63 ] 7, ) CHO2K1 [ PA 63 ] 7, PA LF N 2DTA LF N 2 [18 20 ] DTA LF N 255 R178 K197 R200 P205 I207 I210 K214 [18 PA LF EF ] [21 Mogridge ] PA 512 LF2PA2 PA 63 PA ( CHO2R1 1 CHO2R1 10) PA2D512K PA2K199EΠR468AΠ R470DPA, PA2D512K PA2K199EΠR468AΠ R470D LF N (LF N ) PA2D512K PA2K199EΠR468AΠR470D, Fig 3 Complex formation by wild type and oligomerization - de2 ficient mutants of PA 63 Only one potential pathway of formation of the ternary complex is illustrated [21 ] A( Von Willebrand factor type A, VWA),PA ATR [9 VWA ] ATR,Kenneth [19 ] [22 A ] CHO2K1 LF N 2DTA CHO2K1 CHO2R1 1, LF N 2DTA PA LF, PA2 DT Kenneth [19 ] D512K PA2K199EΠR468AΠR470D OGPA (Oregon Green conjugated form of PA,

6 : 667 OGPA) CHO2R1 1,, CHO2R1 1 ATR 412227 OGPA,T72ATR 412227, PA 9 CHO2R1, OGPA ATR CHO2R111 VWAΠI CHO2R111 cdna 90 % CHO2R111 OGPA ATR cdna LF PA CHO2R111 CHO2R111 PA LF N 2DTA LF,Zn 2 + ATR cdna Zn 2 + LF, 368 27 293 PA, [19 23 ] [17 ], [ PA 63 ] 7 ATR 44 PA 216 VWA VWA, ATR cdna ATR cdna [23 ] ATR 364 TEM8 cdna ATR C ATR C, TEM8,ATR, [19 25, TEM8 221 ] ATR, ATRΠTEM8,, Kenneth [19 ] PA ATR T7 ATR 41 227 T72ATR 412227 PA PA EDTA,PA T72ATR 412227,, PA T72ATR 412227 ATR VWAΠI PA ATR 412227 CHO2K1 PA LF N 2DTA PA LF N 2DTA ATR 412227, CHO2K1 Kenneth [19 ] CHO2K1 PA LF N 2DTA ATR 412227 ATR 412227 PA LF N 2DTA 80 nmolπl 500 nmolπl 50 % 100 %,ATR 3 LF ATR cdna,, PA,, ( References) 1 Mock M,Fouet A Anthrax Annu Rev Microbiol,2001,55 :647 671 2 Bhatnagar R,Batra S Anthrax toxin Crit Rev Microbiol,2001,27(3) : 167 200 3 Brossier F,Mock M Toxins of Bacillus anthracis Toxicon,2001,39 (11) :1747 1755 4 Pannifer A D,Wong T Y,Schwarzenbacher R, Renatus M, Petosa C, Bienkowska J, Lacy D B, Collier R J, Park S, Leppla S H, Hanna P,

668 18 Liddington R C Crystal structure of the anthrax lethal factor Nature, 2001,414(6860) : 229 233 5 Pellizzari R, Guidi2Rontani C, Vitale G, Mock M, Montecucco C An2 thrax lethal factor cleaves MKK3 in macrophages and inhibits the LPSΠ IFNg2induced release of NO and TNF2 FEBS Lett, 1999,462 : 199 204 6 Duesbery N S, Webb C P, Leppla S H, Gordon V M, Klimpel K R, Copeland T D, Ahn N G, Oskarsons M K, Fukasawa K, Paull K D, Woude G F V Proteolytic inactivation of MAP2kinase2kinase by anthrax lethal factor Science, 1998,280 : 734 737 7 Leppla S H Anthrax toxin edema factor : a bacterial adenylate cyclase that increases cyclic AMP concentrations of eukaryotic cells Acad Sci USA, 1982, 79 (10) : 3162 3166 Proc Natl 8 Confer D L, Eaton J W Phagocyte impotence caused by an invasive bacterial adenylate cyclase Science,1982, 217(4563) : 948 950 9 Cunningham K, Lacy D B, Mogridge J, Collier R J Mapping the lethal factor and edema factor binding sites on oligomeric anthrax protective an2 tigen Proc Natl Acad Sci USA, 2002, 99 (10) : 7049 7053 10 Klimpel K R, Arora N, Leppla S H Anthrax toxin lethal factor contains a zinc metalloprotease consensus sequence which is required for lethal toxin activity Mol Microbiol, 1994,13 : 1093 1100 11 Bacon D J,Anderson W F A fast algorithm for rendering space2filling molecule pictures J Mol Graphics, 1988,6 : 219 220 12 Kraulis P J Molscript a program to produce both detailed and sche2 matic plots of protein structures J Appl Crystallogr, 1991,24 : 946 950 13 Merrit E A,Murphy M E P Raster3D version 2 0 A program for pho2 torealistic molecular graphics Acta Crystallogr, 1994,D 50 : 869 873 14 Christopher J A S POCK: The Structural Properties Observation and Cal2 culation Kit (Program Manual) The Center for Macromolecular Design, Texas A&M University, College Station, 1998 15 Duesbery N S, Resau J, Webb C P, Koochekpour S, Koo H M, Leppla S H, Woude V G F Suppression of ras2mediated transformation and in2 hibition of tumour growth and angiogenesis by anthrax lethal factor, a proteolytic inhibit or of multiple MEK pathways Proc Natl Acad Sci USA, 2001, 98 : 4089 4094 16 Dixon T C, Meselson M, Guillemin J, Hanna P C Medical progress : anthrax N Engl J Med, 1999, 341 : 815 862 17 Sellman B R, Mourez M, Collier R J Dominant2negative mutants of a toxin subunit : an approach to therapy of anthrax Science, 2001, 292 (5517) : 695 697 18 Petosa C, Collier R J, Klimpel K R, Leppla S H, Liddington R C Crystal structure of the anthrax toxin protective antigen Nature, 1997, 385 (6619) : 833 838 19 Bradley KA, Mogridge J, Mourez M, Collier R J, Young J A Identifi2 cation of the cellular receptor for anthrax toxin Nature, 2001, 414 (6860) : 225 229 20 Smith O Chemistry Nota bene : know thine enemy Science, 2001, 294 (5545) : 1298 21 Mogridge J, Cunningham K, Lacy D B, Mourez M, Collier R J The lethal and edema factors of anthrax toxin bind only to oligomeric forms of the protective antigen Proc Natl Acad Sci USA, 2002, 99(10) : 7045 7048 22 Milne J C, Blanke S R, Hanna P C, Collier R J Protective antigen2 binding domain of anthrax lethal factor mediates translocation of a heter2 ologous protein fused to its amino2or carboxy2terminus Mol Microbiol, 1995,15 : 661 666 23 Dickeson S K, Santaro S A Ligand recognition by the domain2con2 taining integrins Cell Mol Life Sci, 1998,54 : 556 566